perf script python: Refactor creation of perf sample dict

Move the creation of the dict containing perf_sample entries into a
helper function to enable its reuse in other sample processing routines.

Signed-off-by: Arun Kalyanasundaram <arunkaly@google.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: David Carrillo-Cisneros <davidcc@google.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Seongjae Park <sj38.park@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20170721220422.63962-3-arunkaly@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

1 files changed, 53 insertions, 41 deletions

diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 8a8f4829d3e2..69d1b6db96f6 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -391,6 +391,57 @@ exit:
         return pylist;
 }
 
+static PyObject *get_perf_sample_dict(struct perf_sample *sample,
+                                         struct perf_evsel *evsel,
+                                         struct addr_location *al,
+                                         PyObject *callchain)
+{
+        PyObject *dict, *dict_sample;
+
+        dict = PyDict_New();
+        if (!dict)
+                Py_FatalError("couldn't create Python dictionary");
+
+        dict_sample = PyDict_New();
+        if (!dict_sample)
+                Py_FatalError("couldn't create Python dictionary");
+
+        pydict_set_item_string_decref(dict, "ev_name", PyString_FromString(perf_evsel__name(evsel)));
+        pydict_set_item_string_decref(dict, "attr", PyString_FromStringAndSize(
+                        (const char *)&evsel->attr, sizeof(evsel->attr)));
+
+        pydict_set_item_string_decref(dict_sample, "pid",
+                        PyInt_FromLong(sample->pid));
+        pydict_set_item_string_decref(dict_sample, "tid",
+                        PyInt_FromLong(sample->tid));
+        pydict_set_item_string_decref(dict_sample, "cpu",
+                        PyInt_FromLong(sample->cpu));
+        pydict_set_item_string_decref(dict_sample, "ip",
+                        PyLong_FromUnsignedLongLong(sample->ip));
+        pydict_set_item_string_decref(dict_sample, "time",
+                        PyLong_FromUnsignedLongLong(sample->time));
+        pydict_set_item_string_decref(dict_sample, "period",
+                        PyLong_FromUnsignedLongLong(sample->period));
+        pydict_set_item_string_decref(dict, "sample", dict_sample);
+
+        pydict_set_item_string_decref(dict, "raw_buf", PyString_FromStringAndSize(
+                        (const char *)sample->raw_data, sample->raw_size));
+        pydict_set_item_string_decref(dict, "comm",
+                        PyString_FromString(thread__comm_str(al->thread)));
+        if (al->map) {
+                pydict_set_item_string_decref(dict, "dso",
+                        PyString_FromString(al->map->dso->name));
+        }
+        if (al->sym) {
+                pydict_set_item_string_decref(dict, "symbol",
+                        PyString_FromString(al->sym->name));
+        }
+
+        pydict_set_item_string_decref(dict, "callchain", callchain);
+
+        return dict;
+}
+
 static void python_process_tracepoint(struct perf_sample *sample,
                                       struct perf_evsel *evsel,
                                       struct addr_location *al)
@@ -801,7 +852,7 @@ static void python_process_general_event(struct perf_sample *sample,
                                          struct perf_evsel *evsel,
                                          struct addr_location *al)
 {
-        PyObject *handler, *t, *dict, *callchain, *dict_sample;
+        PyObject *handler, *t, *dict, *callchain;
         static char handler_name[64];
         unsigned n = 0;
 
@@ -819,48 +870,9 @@ static void python_process_general_event(struct perf_sample *sample,
         if (!t)
                 Py_FatalError("couldn't create Python tuple");
 
-        dict = PyDict_New();
-        if (!dict)
-                Py_FatalError("couldn't create Python dictionary");
-
-        dict_sample = PyDict_New();
-        if (!dict_sample)
-                Py_FatalError("couldn't create Python dictionary");
-
-        pydict_set_item_string_decref(dict, "ev_name", PyString_FromString(perf_evsel__name(evsel)));
-        pydict_set_item_string_decref(dict, "attr", PyString_FromStringAndSize(
-                        (const char *)&evsel->attr, sizeof(evsel->attr)));
-
-        pydict_set_item_string_decref(dict_sample, "pid",
-                        PyInt_FromLong(sample->pid));
-        pydict_set_item_string_decref(dict_sample, "tid",
-                        PyInt_FromLong(sample->tid));
-        pydict_set_item_string_decref(dict_sample, "cpu",
-                        PyInt_FromLong(sample->cpu));
-        pydict_set_item_string_decref(dict_sample, "ip",
-                        PyLong_FromUnsignedLongLong(sample->ip));
-        pydict_set_item_string_decref(dict_sample, "time",
-                        PyLong_FromUnsignedLongLong(sample->time));
-        pydict_set_item_string_decref(dict_sample, "period",
-                        PyLong_FromUnsignedLongLong(sample->period));
-        pydict_set_item_string_decref(dict, "sample", dict_sample);
-
-        pydict_set_item_string_decref(dict, "raw_buf", PyString_FromStringAndSize(
-                        (const char *)sample->raw_data, sample->raw_size));
-        pydict_set_item_string_decref(dict, "comm",
-                        PyString_FromString(thread__comm_str(al->thread)));
-        if (al->map) {
-                pydict_set_item_string_decref(dict, "dso",
-                        PyString_FromString(al->map->dso->name));
-        }
-        if (al->sym) {
-                pydict_set_item_string_decref(dict, "symbol",
-                        PyString_FromString(al->sym->name));
-        }
-
         /* ip unwinding */
         callchain = python_process_callchain(sample, evsel, al);
-        pydict_set_item_string_decref(dict, "callchain", callchain);
+        dict = get_perf_sample_dict(sample, evsel, al, callchain);
 
         PyTuple_SetItem(t, n++, dict);
         if (_PyTuple_Resize(&t, n) == -1)